The EL3174 analog input terminal has four individually parameterizable inputs. Signals in the range from -10/0 to +10 V or -20/0/+4 to +20 mA can be processed via each channel. Physically, the voltage and current signals should be connected to different terminal points. Each channel should then be set by the controller/TwinCAT to U or I mode via CoE. The voltage inputs operate differentially; the current inputs are single-ended. All inputs are digitized with a resolution of 16 bits and transmitted, electrically isolated, to the higher-level automation device. With a technical measuring range of ±107% of the nominal range, the terminal also supports commissioning with sensor values in the limit range and diagnostics according to NAMUR NE43.
Product status:
regular delivery
Product information
| Technical data | EL3174 |
|---|---|
| Number of inputs | 4 |
| Ground reference (input) | voltage: differential, current: single-ended |
| Power supply | via the E-bus |
| Oversampling factor | – |
| Distributed clocks | yes |
| Distributed clock accuracy | << 1 µs |
| Internal resistance | > 200 kΩ | typ. 85 Ω |
| Input filter cut-off frequency | 5 kHz |
| Common mode voltage UCM | max. 35 V (voltage measurement) |
| Dielectric strength | max. 30 V (current measurement) |
| Conversion time | minimum 150 µs |
| Measuring range, nominal | -10/0…+10 V | -20/0/+4…+20 mA |
| Measuring range, technical | -10.73…+10.73 V | -21.47…+21.47 mA |
| Resolution | 16 bit (incl. sign) |
| Measurement error/uncertainty | < ±0.3% (relative to full scale value) |
| Electrical isolation | 500 V (E-bus/signal voltage) |
| Current consumption E-bus | typ. 180 mA |
| Current consumption power contacts | load-dependent |
| Bit width in the process image | inputs: 16 byte |
| Configuration | no address or configuration setting |
| Special features | U/I parameterizable, ExtendedRange, standard and compact process image, activatable FIR/IIR filters |
| Weight | approx. 65 g |
| Operating temperature | -25…+60°C |
| Storage temperature | -40…+85°C |
| Relative humidity | 95%, no condensation |
| Vibration/shock resistance | conforms to EN 60068-2-6/EN 60068-2-27 |
| EMC immunity/emission | conforms to EN 61000-6-2/EN 61000-6-4 |
| Protect. rating/installation pos. | IP20/variable |
| Approvals/markings | CE, CCC, UL, ATEX, IECEx, cFMus |
| Ex marking | ATEX: II 3G Ex ec IIC T4 Gc IECEx: Ex ec IIC T4 Gc cFMus: Class I, Division 2, Groups A, B, C, D Class I, Zone 2, AEx ec IIC T4 Gc |
| Housing data | EL-12-16pin |
|---|---|
| Design form | HD (High Density) housing with signal LEDs |
| Material | polycarbonate |
| Installation | on 35 mm DIN rail, conforming to EN 60715 with lock |
| Side by side mounting by means of | double slot and key connection |
| Marking | labeling of the BZxxxx series |
| Wiring | solid conductors (s): direct plug-in technology; fine-stranded conductors (st) and ferrule (f): spring actuation by screwdriver |
| Connection cross-section | s*: 0.08…1.5 mm², st*: 0.25…1.5 mm², f*: 0.14…0.75 mm² |
| Connection cross-section AWG | s*: AWG28…16, st*: AWG22…16, f*: AWG26…19 |
| Stripping length | 8…9 mm |
| Current load power contacts | Imax: 10 A |
| Dimensions (W x H x D) | 12 mm x 100 mm x 68 mm |
*s: solid wire; st: stranded wire; f: with ferrule
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| Material compliance | EL3174 |
|---|---|
| REACH SVHC | no |
| POP | compliant |
| RoHS | compliant with exemption |
| RoHS exemption | 7c-I: Lead-containing electrical and electronic components in glass and ceramic materials, excluding dielectric ceramics in capacitors |
| China-RoHS | www.beckhoff.com/china-rohs-io |
| CA Prop65 | www.beckhoff.com/prop65 |
| Disclaimer | This statement and the information contained above are, to the best of our knowledge and belief, accurate, based on the information we have received from our suppliers. This information is in line with the current standard of technology and our suppliers’ technical documentation. The absence of the substances is not verified by Beckhoff Automation by means of analytical tests. When addressed to our customers any information contained in this document is subject to the terms and conditions expressed in the governing customer agreement. Our general terms and conditions apply. |
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